We use the zero conditional for expressing universal truths, scientific facts, or circumstances that always occur when a certain condition is satisfied., true, false, The correct structure of the "zero conditional" is "If + Present Simple, Present Simple"., true, false, Choose the correct pair of verbs to complete the sentence:   "Iron __________ if it __________ exposed to moisture and oxygen for too long.", will rust / is staying, rusts / stays, Choose the correct pair of verbs to complete the sentence:   "When an athlete __________ high-intensity training, their heart rate __________ significantly.", performs / increases, will perform / increased, Choose the correct pair of verbs to complete the sentence:  "If a virus __________ a computer system, it usually __________ the files.", will infect / corrupts, infects / corrupts, Choose the correct pair of verbs to complete the sentence:   "When a liquid __________ its boiling point, it __________ into a gas.", reaches / turns, is reaching / turns, Choose the correct pair of verbs to complete the sentence:   "If the government __________ taxes too high, consumer spending usually __________.", sets / drops, set / will drop.

Pre-test - Zero conditional

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